How did Maggie Walker use banks for African American economic advancement during the Jim Crow era? Este plan de clase con actividades incluido también está disponible en español. Objective 1. Explore ways that African Americans overcame legal and social segregation during the Jim Crow era. 2. Learn economic and banking principles. 3. Practice using the scientific method to make observations and inferences of 3D printed artifacts. 4. Practice writing letters and expressing thoughts and feelings in a structured way. Background Following Reconstruction-era gains, Jim Crow laws reversed the course Duration: 90 Minutes.